diff options
| -rw-r--r-- | src/level.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/level.cpp b/src/level.cpp index f3235a8..d5893e6 100644 --- a/src/level.cpp +++ b/src/level.cpp @@ -103,6 +103,8 @@ void Level::toggleTile(int x, int y) } static const char* DEFAULT_FILENAME = "level.non"; +static const char* LEVEL_HEADER = "NON"; +static const int LEVEL_HEADER_SIZE = 3; void Level::save() const { @@ -118,6 +120,8 @@ void Level::save() const return; } + outputStream.write(LEVEL_HEADER, LEVEL_HEADER_SIZE); + outputStream.write((char*)&m_width, 1); outputStream.write((char*)&m_height, 1); outputStream.write((char*)m_tiles, m_width * m_height); @@ -134,6 +138,14 @@ void Level::load() return; } + char header[LEVEL_HEADER_SIZE]; + inputStream.read(header, LEVEL_HEADER_SIZE); + + if (strncmp(header, LEVEL_HEADER, LEVEL_HEADER_SIZE) != 0) { + std::cerr << "Level loaded from " << DEFAULT_FILENAME << " does not match expected header!\n"; + return; + } + uint8_t width, height; inputStream.read((char*)&width, 1); inputStream.read((char*)&height, 1); |